Gas and air mixing burner.



N0. 766,494. PATENTBD AUG. 2, 1904. F. G. GRONE.

GAS AND AIR MIXING BURNER.

APPLICATION FILED DEO.1'7, 1902.

N0 MODEL.

UNITED STATES Patented August 2, 1904.

FRANCIS G. CRONE, OF BUFFALO, NEIV YORK.

GAS AND AIR MIXING BURNER.

SPECIFICATION forming part of Letters Patent No. 766,494, dated August 2, 1904.

Application filed December 1'7, 1902. Serial No. 135,630. (No model.)

To all LI/72,0111 it DLfl/Z/ concern:

Be it known that I, FRANCIS Gr. CRoNE, a citizen of the United States, residing at Buffalo, in the county of Erie and State of New York, have invented certain new and useful Improvements in Gas and Air Mixing Burners, of which the following is a specification.

This invention relates to improvements in the construction of gas-burners whereby the gas or gas mixture supplied to the burner may be mixed freely with air at the point of ignition or where combustion takes place.

The object of my invention is to provide a gas-burner adapted for use in stoves and furnaces or for generating steam in a boiler for motor-vehicles and to so construct the same that all liability of the burner becoming overheated is avoided, also to insure perfect combustion with the varying gas-pressure owing to the arrangement or construction of the draft-tubes.

Another object of this invention is to provide a gasand air mixing burner with an adjustable deflector or heat-distributer which may be easily and quickly attached or removed.

IVith these objects in view and such others as may hereinafter appear my invention consists in the particularconstruction of the various parts and in the novel manner of combination and arrangement of said parts, all of which will be fully described, and specifically pointed out in the appended claim.

In the drawings forming a part of this specification, Figure l is a top plan view showing the deflector partly broken away. Fig. 2 is a view in side elevation, partly in section. Fig. 3 is a detail view illustrating one of the draft-tubes. Fig. I is a modification of the draft-tube.

Referring by numerals to the drawings, 1 represents the shell or casing, which may be cast in one or two parts. In either case the top and bottom is held together or braced by the screw-threaded studs 2, which prevent warping or spreading. In the bottom and at the center thereof is a screw-threaded aperture 3, adapted to receive the supplypipe 4. However, this supply-pipe may be admitted through the side wall, if found more desirable. Staggered around the screwthreaded aperture 3 in the bottom of the casing are two or more rows of apertures 4E, mounted in each of which is a draft-tube 5, having its lower edge projecting through the aperture and swaged. as shown at 6, so as to form a perfectly air-tight joint. These drafttubes are sufficiently long to project up through registering apertures 7 in the top, which apertures are a fraction larger than those in the bottom and are adapted to be engaged by the lugs 8, formed or pressed out upon the tubes. Hence there is around each tube a series of narrow segmental passages 9, through which gas passes from the shell or casing to be further mixed with air passing through the tube at the point of ignition.

Secured in the center-of the top is a perpendicular screw-threaded rod 10, mounted to travel upon which is a plate 11, having several rows of apertures 12 therein, which are cone or conical shaped, so as to collect the heat and distribute it evenly, thus providing an efficient deflector.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-

In a burner of the character described, the combination of a casing having a series of registering apertures in the top and bottom thereof, draft-tubes mounted in the apertures in the bottom, the draft-tubes projecting up through the apertures in the top, lugs upon the draft-tubes adapted to engage the walls of the apertures in the top, an inlet-tube in the wall of the casing, a disk mounted to travel upon a screw-threaded upright in the center of the casing, the said disk being perforated, substantially as specified.

FRANCIS Ur. CRONE.

Witnesses:

J Aims Gr. RAMBO, HENRY Drum. 

